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/*
* Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ClipRect_h
#define ClipRect_h
#include "platform/geometry/LayoutRect.h"
#include "wtf/Allocator.h"
namespace blink {
class HitTestLocation;
class ClipRect {
USING_FAST_MALLOC(ClipRect);
public:
ClipRect() : m_hasRadius(false), m_isClippedByClipCss(false) {}
ClipRect(const LayoutRect& rect)
: m_rect(rect), m_hasRadius(false), m_isClippedByClipCss(false) {}
const LayoutRect& rect() const { return m_rect; }
bool hasRadius() const { return m_hasRadius; }
void setHasRadius(bool hasRadius) { m_hasRadius = hasRadius; }
bool operator==(const ClipRect& other) const {
return rect() == other.rect() && hasRadius() == other.hasRadius();
}
bool operator!=(const ClipRect& other) const {
return rect() != other.rect() || hasRadius() != other.hasRadius();
}
bool operator!=(const LayoutRect& otherRect) const {
return rect() != otherRect;
}
void intersect(const LayoutRect& other) { m_rect.intersect(other); }
void intersect(const ClipRect& other) {
m_rect.intersect(other.rect());
if (other.hasRadius())
m_hasRadius = true;
}
void move(const LayoutSize& size) { m_rect.move(size); }
void move(const IntSize& size) { m_rect.move(size); }
void moveBy(const LayoutPoint& point) { m_rect.moveBy(point); }
bool isEmpty() const { return m_rect.isEmpty(); }
bool intersects(const HitTestLocation&) const;
// These have no semantic use. They are used for use-counting.
bool isClippedByClipCss() const { return m_isClippedByClipCss; }
ClipRect& setIsClippedByClipCss() {
m_isClippedByClipCss = true;
return *this;
}
String toString() const { return m_rect.toString(); }
private:
LayoutRect m_rect;
bool m_hasRadius;
bool m_isClippedByClipCss;
};
inline ClipRect intersection(const ClipRect& a, const ClipRect& b) {
ClipRect c = a;
c.intersect(b);
return c;
}
} // namespace blink
#endif // ClipRect_h
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